Description
Piston ring quality directly impacts compression, blow-by control, and engine longevity—making this Plasma Moly set from Speed Pro an essential upgrade for serious rebuilds. File-fit construction demands precision installation but rewards you with superior sealing and reduced oil consumption. Whether you’re refreshing a naturally aspirated engine or preparing for boost, these rings deliver the consistent performance that separates a competent build from a bulletproof one.
- Bore Size: 4.060″
- Ring Thickness: 1/16″ top, 1/16″ second, 3/16″ oil
- Material: Plasma Moly coated
- Fit Type: File fit
- Tension: Standard
- Application: 8-cylinder engines
- Kit Configuration: Complete set
- Manufacturer: Speed Pro
- MPN: R977165
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